Update multiple inclusion guards to match filename.

Originally committed as revision 17242 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/xvmc.h

@@ -18,8 +18,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef AVCODEC_XVMC_RENDER_H
-#define AVCODEC_XVMC_RENDER_H
+#ifndef AVCODEC_XVMC_H
+#define AVCODEC_XVMC_H
 
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
@@ -72,4 +72,4 @@ struct xvmc_render_state {
 
 };
 
-#endif /* AVCODEC_XVMC_RENDER_H */
+#endif /* AVCODEC_XVMC_H */